I haven't heard of that, but have been absent from forums for a while. May I ask how many miles on your car? We have almost 10K on ours, and no heat pump issues so far. But when I bought it, since the heat pump was just implemented, I was afraid of exactly that: early adopter problems. My car still has the old headlights, so it was one of the first 2021s. Did you notice any changes, other than the code? And by the way, WHERE did you see the code? To be more informed if something like that happens to our car.
Finally, I honestly wouldn't have only 2 vehicles, and both electric, at least not yet. One of our 2 daugthers lives in Amarillo, and there are no super chargers anywhere in that huge area; only those 'mickey mouse' ones that would take 5 hours to recharge the car. We'd have to take a 155-mile detour thru Albuquerque. If we were to travel at 55, we might make it in 'fumes', but no way I'd travel like that. And it's kind of a PITA to spend that much time recharging anyway, so the Tesla became a city car now, which is what it really is IMO. I was thinking of a Model S, but it has basically the same limited highway range as the LR M3 we have now, since it's heavier and consumes more energy (and also takes longer to charge). So bought a luxury SUV, which is much quieter, and a lot more comfortable, with twice the range. And that's what we use exclusively to travel by land.